CN110550521A

CN110550521A - Elevator power failure auxiliary system

Info

Publication number: CN110550521A
Application number: CN201910742128.8A
Authority: CN
Inventors: 沈建新; 张惠忠; 谢其成
Original assignee: LINGDIAN ELEVATOR CO Ltd
Current assignee: LINGDIAN ELEVATOR CO Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2019-12-10

Abstract

An elevator power failure auxiliary system comprises a UPS, a power failure detection device, a fire power failure auxiliary subprogram, a common power failure auxiliary subprogram, an elevator normal operation main program and a controller, and is characterized in that the power failure detection device detects whether power failure occurs or not and transmits an electric signal to the controller, the fire detection device is connected with a building fire protection system and detects whether fire occurs or not, the electric signal is transmitted to the controller, the controller selects from the common power failure auxiliary subprogram, the fire power failure auxiliary subprogram and the elevator normal operation main program according to the two electric signals, the single-input three-output UPS continues to supply power to the elevator under the condition of power failure, the elevator normal operation main program controls the normal operation of the elevator, the common power failure auxiliary subprogram controls the elevator to run to the most appropriate flat floor by the single-input three-output UPS under the condition of common power failure, and the fire power failure auxiliary subprogram controls the elevator to run to the first floor when a fire disaster occurs.

Description

Elevator power failure auxiliary system

Technical Field

The invention belongs to the field of mechanical equipment, and particularly relates to an elevator power failure auxiliary system.

Background

With the continuous development of society and the continuous progress of science and technology, the living standard of people is improved, and the application of elevators is very wide. Comfort and safety are every elevator endeavor. The elevator power failure emergency device is born because the elevator encounters the condition that sudden power failure causes people or objects to be trapped in the elevator during operation.

The existing elevator power failure emergency device is small in size, is like a vertical computer host, and can be arranged on a home-made or imported elevator. No matter the elevator is suddenly powered off or fails during operation, the device can automatically switch and take over the control right of the elevator within seconds, the elevator is enabled to run to a preset floor position, a door is automatically opened, passengers safely leave the elevator, but the elevator power failure emergency device can only slowly run an elevator car to a nearby station flat floor in a light load direction after power failure, and the elevator cannot be seamlessly connected, so that the passengers are alarmed by the elevator power failure emergency device, particularly children, psychological shadows are inevitably formed, if the elevator is powered off due to fire, the elevator is in a high floor, the passengers are left in the high floor, the best escape opportunity is missed, and the conventional elevator power failure emergency device is rarely applied.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a method.

The technical scheme of the invention is as follows: an elevator power failure auxiliary system comprises a UPS, a power failure detection device, a fire power failure auxiliary subprogram, a common power failure auxiliary subprogram, an elevator normal operation main program and a controller, and is characterized in that the power failure detection device detects whether power failure occurs or not, transmits an electric signal to the controller, is connected with a building fire protection system, detects whether fire occurs or not, transmits the electric signal to the controller, judges according to the two electric signals by the controller, selects from the common power failure auxiliary subprogram, the fire power failure auxiliary subprogram and the elevator normal operation main program, the UPS continuously supplies power to the elevator at the moment of power failure, the elevator normal operation main program controls the normal operation of the elevator when power failure does not occur and fire does not occur, the common power failure auxiliary subprogram controls the elevator to operate to the most appropriate flat floor by the UPS under the condition that power failure does not occur and fire does not occur, the elevator safety protection device comprises a fire power failure auxiliary sub-program, a passenger is released and stops running until normal power on, the most suitable flat layer refers to the flat layer which is closest to the running direction of the elevator on the premise of not influencing the stable running of the elevator, for example, a car target floor is ten layers, the car runs upwards at five layers at present, power failure which is not caused by fire occurs suddenly, the car cannot stop at five layers immediately, the car stops at six layers or seven layers under the condition of ensuring comfort according to the original car stop principle, the passenger is released and stops running until normal power on, and when the fire occurs and is detected by a fire detection device, the elevator is controlled to run to one floor, the passenger is released and the elevator stops running.

Different UPSs are selected for different elevators according to requirements.

Further, the UPS may be a single-input three-output UPS, that is, a single-phase ac power is input and a three-phase ac power is output.

Further, the UPS may be a single-input single-output UPS, that is, a single-phase ac power is input and a single-phase ac power is output.

Further, the UPS may be a three-input single-output UPS, that is, a three-phase ac power is input and a single-phase ac power is output.

Further, the UPS can provide sufficient power to run a fully loaded elevator from the highest floor to a floor at least once.

The invention has the beneficial effects that: 1. UPS continues to supply power for the elevator in the moment of power failure, so that passengers in the elevator cannot perceive the abnormality, and the panic psychology is avoided. 2. When a fire disaster occurs, when a building fire disaster fire fighting system works, the elevator can make a quick response whether power is off or not, and passengers in the elevator car are sent to the first floor to master the best escape opportunity.

Drawings

FIG. 1 is a schematic diagram of the logic structure of the present invention.

Detailed Description

As shown in the attached figure 1, the elevator power failure auxiliary system comprises a UPS, a power failure detection device, a fire power failure auxiliary subprogram, a common power failure auxiliary subprogram, an elevator normal operation main program and a controller, and is characterized in that the power failure detection device detects whether power failure occurs or not and transmits an electric signal to the controller, the fire detection device is connected with a building fire protection system and detects whether fire occurs or not and transmits the electric signal to the controller, the controller judges according to the two electric signals, the normal power failure auxiliary subprogram, the fire power failure auxiliary subprogram and the elevator normal operation main program are selected, the UPS continues to supply power to the elevator at the moment of power failure, the elevator normally operates when power failure does not occur and fire does not occur, the common power failure auxiliary subprogram controls the elevator to operate to the most appropriate flat floor by the UPS under the condition that the power failure does not occur and the fire does not occur, the elevator safety protection device comprises a fire power failure auxiliary sub-program, a passenger is released and stops running until normal power on, the most suitable flat layer refers to the flat layer which is closest to the running direction of the elevator on the premise of not influencing the stable running of the elevator, for example, a car target floor is ten layers, the car runs upwards at five layers at present, power failure which is not caused by fire occurs suddenly, the car cannot stop at five layers immediately, the car stops at six layers or seven layers under the condition of ensuring comfort according to the original car stop principle, the passenger is released and stops running until normal power on, and when the fire occurs and is detected by a fire detection device, the elevator is controlled to run to one floor, the passenger is released and the elevator stops running.

Different UPSs are selected for different elevators according to requirements.

Furthermore, the UPS is a single-input three-output UPS, namely, single-phase alternating current is input, and three-phase alternating current is output.

Furthermore, the UPS is a single-input single-output UPS, namely single-phase alternating current is input, and single-phase alternating current is output.

Further, the UPS is a three-input single-output UPS, that is, three-phase ac power is input and single-phase ac power is output.

Claims

1. The utility model provides an elevator power failure auxiliary system, includes UPS, power failure detection device, fire detection device, conflagration power failure auxiliary subprogram, ordinary power failure auxiliary subprogram, elevator normal operating main program, controller, its characterized in that, whether power failure detection device detects the power failure, with signal of telecommunication transmission to controller, fire detection device connects building fire extinguishing system, detects whether conflagration breaks out, with signal of telecommunication transmission to controller, the controller judges according to two signals of telecommunication, selects in ordinary power failure auxiliary subprogram, conflagration power failure auxiliary subprogram and elevator normal operating main program, UPS continues to supply power for the elevator in the twinkling of an eye in the power failure.

2. The elevator power failure auxiliary system as claimed in claim 1, wherein the elevator normal operation main program controls the normal operation of the elevator when power failure does not occur and fire disaster does not occur, the ordinary power failure auxiliary subprogram controls the elevator to operate to the most appropriate flat floor by means of a UPS under the condition that power failure does not occur and fire disaster does not occur, passengers are released, and the elevator stops operating until normal power on, and the fire power failure auxiliary subprogram controls the elevator to directly operate to a first floor, and the passengers are released and stop operating when fire disaster occurs and is detected by the fire disaster detection device.

3. The elevator power failure auxiliary system as claimed in claim 2, wherein the most suitable flat layer is the flat layer closest to the elevator running direction without affecting the smooth running of the elevator.

4. An elevator power failure assistance system as claimed in claim 1 wherein different UPSs are used for different elevators.

5. The elevator power failure auxiliary system as claimed in claim 4, wherein the UPS is a single-input three-output UPS, i.e. a single-phase AC power input and a three-phase AC power output.

6. The elevator power failure auxiliary system as claimed in claim 4, wherein the UPS is a single-input single-output UPS, i.e. a single-phase AC power input and a single-phase AC power output.

7. The elevator power failure auxiliary system as claimed in claim 4, wherein the UPS is a three-input single-output UPS, i.e. a three-phase AC power input and a single-phase AC power output.

8. The elevator blackout assistance system of claim 4, wherein the UPS is capable of providing sufficient power to operate a fully loaded elevator from a highest floor to a floor at least once.